Exploring advanced nanocatalysts are of importance for hydrogen evolution reaction (HER) in alkaline electrolyte (e.g. 1.0 M KOH). Herein, porous iridium-palladium-plumbum wire-like nanonetworks (IrPdPb WNNs) were prepared by a facile one-pot aqueous method with octylphenoxypolyethoxyethanol (NP-40) as the structure-director. The resultant IrPdPb WNNs exhibited superior HER performance in the alkaline electrolyte, such as ultra-low overpotential (21 mV) to drive a current density of 10 mA cm⁻², small Tafel slope (66 mV dec⁻¹), and high exchange current density (4.87 mA cm⁻²), surpassing commercial Pt/C. This study provides a simple strategy for synthesis of advanced multi-metallic electrocatalysts in energy storage and conversion.

探索先进的纳米催化剂对于碱性电解质（例如1.0 M KOH）中的氢释放反应（HER）至关重要。在此，以辛基苯氧基聚乙氧基乙醇（NP-40）为结构导向剂，通过简便的一锅水法制备了多孔铱-钯-铅线状纳米网络（IrPdPb WNNs）。所得的IrPdPb WNN在碱性电解液中表现出优异的HER性能，例如超低超电势（21 mV），可驱动10 mA cm ^-2的电流密度，小的Tafel斜率（66 mV dec ^-1）和高交换电流密度（4.87 mA cm ^-2），超过了商用Pt / C。这项研究为在能量存储和转化中合成高级多金属电催化剂提供了一种简单的策略。